Features: 1. Adopt 24V imported slience DC motor from Taiwan 2. Ergonoic solutions chair, make patient more comfortable. 3. Removable spittoon 4. Central Suction System(without vacuum pump). 5. Cup and paper holder, 2PCS 3 way syringes. 6. Built in or built out floor box optional. 7. Double armrests, on the right side of the armrest can be rotated 180 �° 8. Multifunctional pedal. 9. Sensor LED sensor light 10. Stable floor type structure. 11. Auto cuspidor flush & water supply control constant temperature system